JP6880652B2 - Transfer device and image forming device - Google Patents

Transfer device and image forming device Download PDF

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JP6880652B2
JP6880652B2 JP2016209601A JP2016209601A JP6880652B2 JP 6880652 B2 JP6880652 B2 JP 6880652B2 JP 2016209601 A JP2016209601 A JP 2016209601A JP 2016209601 A JP2016209601 A JP 2016209601A JP 6880652 B2 JP6880652 B2 JP 6880652B2
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base material
coating layer
image forming
transfer device
titanium
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JP2018072469A (en
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瀬古　真路
真路 瀬古
田中　大輔
大輔 田中
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Fujifilm Business Innovation Corp
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Fuji Xerox Co Ltd
Fujifilm Business Innovation Corp
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Priority to US15/489,804 priority patent/US10088780B2/en
Priority to CN201710413388.1A priority patent/CN107991847B/en
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    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G15/00—Apparatus for electrographic processes using a charge pattern
    • G03G15/14—Apparatus for electrographic processes using a charge pattern for transferring a pattern to a second base
    • G03G15/16—Apparatus for electrographic processes using a charge pattern for transferring a pattern to a second base of a toner pattern, e.g. a powder pattern, e.g. magnetic transfer
    • G03G15/1665—Apparatus for electrographic processes using a charge pattern for transferring a pattern to a second base of a toner pattern, e.g. a powder pattern, e.g. magnetic transfer by introducing the second base in the nip formed by the recording member and at least one transfer member, e.g. in combination with bias or heat
    • G03G15/167—Apparatus for electrographic processes using a charge pattern for transferring a pattern to a second base of a toner pattern, e.g. a powder pattern, e.g. magnetic transfer by introducing the second base in the nip formed by the recording member and at least one transfer member, e.g. in combination with bias or heat at least one of the recording member or the transfer member being rotatable during the transfer
    • G03G15/168—Apparatus for electrographic processes using a charge pattern for transferring a pattern to a second base of a toner pattern, e.g. a powder pattern, e.g. magnetic transfer by introducing the second base in the nip formed by the recording member and at least one transfer member, e.g. in combination with bias or heat at least one of the recording member or the transfer member being rotatable during the transfer with means for conditioning the transfer element, e.g. cleaning
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G15/00—Apparatus for electrographic processes using a charge pattern
    • G03G15/14—Apparatus for electrographic processes using a charge pattern for transferring a pattern to a second base
    • G03G15/16—Apparatus for electrographic processes using a charge pattern for transferring a pattern to a second base of a toner pattern, e.g. a powder pattern, e.g. magnetic transfer
    • G03G15/1605—Apparatus for electrographic processes using a charge pattern for transferring a pattern to a second base of a toner pattern, e.g. a powder pattern, e.g. magnetic transfer using at least one intermediate support
    • G03G15/161—Apparatus for electrographic processes using a charge pattern for transferring a pattern to a second base of a toner pattern, e.g. a powder pattern, e.g. magnetic transfer using at least one intermediate support with means for handling the intermediate support, e.g. heating, cleaning, coating with a transfer agent
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G2215/00—Apparatus for electrophotographic processes
    • G03G2215/16—Transferring device, details
    • G03G2215/1647—Cleaning of transfer member
    • G03G2215/1661—Cleaning of transfer member of transfer belt

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Electrostatic Charge, Transfer And Separation In Electrography (AREA)
  • Cleaning In Electrography (AREA)

Description

本発明は、転写装置及び画像形成装置に関する。 The present invention relates to a transfer device and an image forming device.

下記特許文献１には、所定の極性に帯電された顕像剤を担持する顕像剤担持部材と、該顕像剤担持部材に対向する位置に設けられた背面電極部材と、前記顕像剤担持部材と背面電極部材との間に位置し、顕像剤を飛翔制御させるための制御電極部材とを備えた画像形成装置において、前記制御電極部材と背面電極部材との間に顕像剤の飛翔エネルギーを吸収し顕像剤を一時的に保持する表面を有する中間転写部材と、該中間転写部材に接し当該中間転写部材の表面に残留した顕像剤を取り除くために該顕像剤の帯電極性と逆極性の電圧が印加されたクリーニング部材とを具備したことを特徴とする画像形成装置が開示されている。 The following Patent Document 1 describes a imaging agent-supporting member that supports a imaging agent charged to a predetermined polarity, a back electrode member provided at a position facing the imaging agent-supporting member, and the imaging agent. In an image forming apparatus located between the supporting member and the back electrode member and provided with a control electrode member for controlling the flight of the imager, the image forming agent is placed between the control electrode member and the back electrode member. An intermediate transfer member having a surface that absorbs flight energy and temporarily holds the imager, and charging the imager in order to remove the imager that comes into contact with the intermediate transfer member and remains on the surface of the intermediate transfer member. An image forming apparatus is disclosed, which comprises a cleaning member to which a voltage having a polarity opposite to that of the polarity is applied.

下記非特許文献２には、像担持体と、該像担持体表面に当接して該像担持体を帯電する帯電ローラと、該像担持体を露光して潜像を形成する露光装置と、該像担持体上の潜像を現像してトナー像化する現像装置と、該像担持体上のトナー像を被転写体上に転写する転写装置と、転写後の該像担持体表面にエッジ部を当接させて該像担持体上の付着物を除去するクリーニングブレードとを備え、該帯電ローラは表面に周方向に沿って延びる凹凸を有する画像形成装置において、 上記クリーニングブレードは、上記帯電ローラの表面の周方向に沿って延びる凹凸によって上記像担持体表面に形成された凹凸にならって弾性変形して該像担持体上の付着物を除去することを特徴とする画像形成装置が開示されている。 The following Non-Patent Document 2 describes an image carrier, a charging roller that abuts on the surface of the image carrier to charge the image carrier, and an exposure apparatus that exposes the image carrier to form a latent image. A developing device that develops a latent image on the image carrier to form a toner image, a transfer device that transfers the toner image on the image carrier onto a transfer target, and an edge on the surface of the image carrier after transfer. In an image forming apparatus having a cleaning blade that abuts portions to remove deposits on the image carrier, and the charging roller has irregularities extending along the circumferential direction on the surface, the cleaning blade is charged. Disclosed is an image forming apparatus characterized in that the unevenness extending along the circumferential direction of the surface of a roller elastically deforms according to the unevenness formed on the surface of the image carrier to remove deposits on the image carrier. Has been done.

特開平１０−２６０５８９号公報Japanese Unexamined Patent Publication No. 10-260589 特開２０１４− ８５５９５号公報Japanese Unexamined Patent Publication No. 2014-85595

本発明は、ダイヤモンドライクカーボン被覆層を有さないクリーニングブレードを具える場合と比べて、表面粗さＲｚが０．０５以上０．１５μｍ以下の範囲である無端状ベルトに対する清掃不良の発生が生じにくい、転写装置の提供を目的とする。 In the present invention, as compared with the case where a cleaning blade having no diamond-like carbon coating layer is provided, a cleaning defect occurs in the endless belt having a surface roughness Rz in the range of 0.05 or more and 0.15 μm or less. The purpose is to provide a difficult transfer device.

［転写装置］
請求項１に係る本発明は、表面粗さＲｚが０．０５以上０．１５μｍ以下である無端状のベルトと
前記ベルトを清掃するクリーニングブレードであって、板状の樹脂基材と、前記樹脂基材の少なくとも一つの辺部を覆う被覆層とを有し、前記被覆層には、前記樹脂基材との界面側に形成され、ダイヤモンドライクカーボンと、窒化チタン、シリコンチタン、タングステンチタン、炭化チタン及び炭窒化チタンから成る群から選ばれる少なくとも一つとを含有する繋ぎ層と、前記繋ぎ層を覆いダイヤモンドライクカーボンからなる表面層とが形成されている、前記クリーニングブレードと、
を具えた転写装置である。 [Transfer device]
The present invention according to claim 1 is an endless belt having a surface roughness Rz of 0.05 or more and 0.15 μm or less, a cleaning blade for cleaning the belt, a plate-shaped resin base material, and the resin. It has a coating layer that covers at least one side of the base material, and the coating layer is formed on the interface side with the resin base material and contains diamond-like carbon, titanium nitride, silicon titanium, tungsten titanium, and carbonized material. The cleaning blade, which comprises a connecting layer containing at least one selected from the group consisting of titanium and titanium nitride, and a surface layer made of diamond-like carbon covering the connecting layer.
It is a transfer device equipped with.

請求項２に係る本発明は、前記樹脂基材が、ウレタン系ゴム、ポリイミド系ゴム、シリコーンゴム、フッ素ゴム、プロロピレンゴム、ブタジエンゴムから成る群から選ばれるいずれかである請求項１記載の転写装置である。 The present invention according to claim 2 is the one according to claim 1, wherein the resin base material is selected from the group consisting of urethane-based rubber, polyimide-based rubber, silicone rubber, fluororubber, prolopylene rubber, and butadiene rubber. It is a transfer device.

請求項３に係る本発明は、前記樹脂基材と前記被覆層との界面においては、前記樹脂基材及び前記被覆層の構成材料が混在した領域が形成されている、請求項１又は２記載の転写装置である。 The first or second aspect of the present invention according to claim 3, wherein a region in which the resin base material and the constituent materials of the coating layer are mixed is formed at the interface between the resin base material and the coating layer. It is a transfer device of.

請求項４に係る本発明は、前記表面層の厚みが０．０５μｍ以上０．３μｍ以下である、請求項１から３記載の転写装置である。 The present invention according to claim 4 is the transfer device according to claims 1 to 3, wherein the thickness of the surface layer is 0.05 μm or more and 0.3 μm or less.

請求項５に係る本発明は、前記表面層のビッカース硬度が１５００Ｈｖ以上である、請求項１から４記載の転写装置である。 The present invention according to claim 5 is the transfer device according to claims 1 to 4, wherein the Vickers hardness of the surface layer is 1500 Hv or more.

［画像形成装置］
請求項６に係る本発明は、請求項１から５いずれか記載の転写装置を具えた、画像形成装置である。 [Image forming device]
The present invention according to claim 6 is an image forming apparatus including the transfer apparatus according to any one of claims 1 to 5.

請求項１に係る本発明よれば、表面粗さＲｚが０．０５以上０．１５μｍ以下の範囲である無端状ベルトに対する清掃不良の発生が、被覆層を有さないクリーニングブレードを具える場合よりも、生じにくい転写装置が得られる。 According to the first aspect of the present invention, the occurrence of cleaning failure on the endless belt having a surface roughness Rz in the range of 0.05 or more and 0.15 μm or less is greater than the case where a cleaning blade having no coating layer is provided. However, a transfer device that is unlikely to occur can be obtained.

請求項２に係る本発明よれば、請求項１の効果に加えてウレタン系ゴム、ポリイミド系ゴム、シリコーンゴム、フッ素ゴム、プロロピレンゴム、ブタジエンゴムから成る群から選ばれるいずれかである場合に適用可能となる。 According to the second aspect of the present invention, in addition to the effect of the first aspect, it is selected from the group consisting of urethane rubber, polyimide rubber, silicone rubber, fluororubber, prolopylene rubber, and butadiene rubber. It becomes applicable.

請求項３に係る本発明よれば、請求項１又は２の効果に加えて、樹脂基材と被覆層の構成材料との混在領域を設けないクリーニングブレードを具える場合と比べて、クリーニングブレードの被覆層が更に剥がれにくい転写装置が得られる。 According to the third aspect of the present invention, in addition to the effects of the first or second aspect, the cleaning blade is provided with a cleaning blade in which a mixed region of the resin base material and the constituent material of the coating layer is not provided. A transfer device in which the coating layer is more difficult to peel off can be obtained.

請求項４に係る本発明によれば、請求項１から３いずれかの効果に加えて、クリーニングブレードの被覆層の剥がれにくさと耐摩耗性が両立された転写装置が得られる。 According to the fourth aspect of the present invention, in addition to the effects of any one of claims 1 to 3, a transfer device having both resistance to peeling of the coating layer of the cleaning blade and abrasion resistance can be obtained.

請求項５に係る本発明によれば、請求項１から４いずれかの効果に加えて、クリーニングブレードの表面層のビッカース硬度が１５００Ｈｖ未満である場合と比べて、クリーニングブレードの耐摩耗性が高い転写装置が得られる。 According to the present invention according to claim 5, in addition to the effect of any one of claims 1 to 4, the wear resistance of the cleaning blade is higher than that in the case where the Vickers hardness of the surface layer of the cleaning blade is less than 1500 Hv. A transfer device is obtained.

請求項６に係る本発明によれば、転写装置が被覆層を有さないクリーニングブレードを具える場合と比べて、表面粗さＲｚが０．０５以上０．１５μｍ以下の範囲である無端状ベルトに対する清掃不良の発生が生じにくい、画像形成装置が得られる。 According to the sixth aspect of the present invention, an endless belt having a surface roughness Rz in the range of 0.05 or more and 0.15 μm or less as compared with the case where the transfer device includes a cleaning blade having no coating layer. An image forming apparatus can be obtained in which the occurrence of poor cleaning is unlikely to occur.

鏡面光沢度Ｇｓ（６０°）と表面粗さＲｚの関係を表す検量線である。It is a calibration curve showing the relationship between the mirror glossiness Gs (60 °) and the surface roughness Rz.

画像形成装置においては、像保持体や中間転写ベルト等に残留した現像剤を清掃するためにクリーニング装置が設けられている。このクリーニング装置の例として、基材としてポリウレタンゴム等の樹脂を用いた弾性を有するクリーニングブレードがある。 The image forming apparatus is provided with a cleaning apparatus for cleaning the developer remaining on the image holder, the intermediate transfer belt, and the like. An example of this cleaning device is an elastic cleaning blade using a resin such as polyurethane rubber as a base material.

このようなクリーニングブレードは、被接触部材に角部（エッジ）が接触するよう設置され、摺擦によりエッジで現像剤を掻き落とすことで、クリーニング装置として機能する。 Such a cleaning blade is installed so that the corner portion (edge) is in contact with the contacted member, and functions as a cleaning device by scraping off the developer with the edge by rubbing.

以下、本実施形態に係るクリーニングブレードについて説明する。本実施形態に係るクリーニングブレードは、ブレード基材とその表面を覆う被覆層と、を具えている。 Hereinafter, the cleaning blade according to the present embodiment will be described. The cleaning blade according to the present embodiment includes a blade base material and a coating layer covering the surface thereof.

ブレード基材は板状の樹脂基材から成り、ダイヤモンドライクカーボンを主成分とする被覆層によって、少なくとも一辺を覆うように被覆されている。この被覆された一辺は、画像形成装置内に設置される際に、クリーニング対象であるベルトと当接することになる部分に相当する。 The blade base material is made of a plate-shaped resin base material, and is coated with a coating layer containing diamond-like carbon as a main component so as to cover at least one side. This covered side corresponds to a portion that comes into contact with the belt to be cleaned when it is installed in the image forming apparatus.

被覆層で被覆されていないブレード基材単体は、従来型の弾性ブレードに相当し、この被覆層は、その硬さと低摩擦係数から、クリーニング対象との接触部における耐摩耗性及び低摩擦性を向上させるものである。すなわち、ブレード基材が直接ベルトと接する態様と比べて、ベルトとの摺動によって生じる摩耗への耐性が向上し、かつ、ベルトとの摩擦の軽減化が図られる。 The single blade base material that is not coated with the coating layer corresponds to a conventional elastic blade, and this coating layer provides wear resistance and low friction resistance at the contact area with the object to be cleaned due to its hardness and low friction coefficient. It is something to improve. That is, as compared with the mode in which the blade base material is in direct contact with the belt, the resistance to wear caused by sliding with the belt is improved, and the friction with the belt is reduced.

耐摩耗性の向上はクリーニングブレードの長寿命化に寄与するものであり、低摩擦性の向上は、クリーニング性能の向上に寄与する。 The improvement of wear resistance contributes to the extension of the life of the cleaning blade, and the improvement of the low frictional property contributes to the improvement of the cleaning performance.

ブレード基材を構成する樹脂基材としては、非金属製のクリーニングブレードとして一般的に用いられている各種弾性基材を採用可能であり、例えば、ポリウレタンゴム、シリコーンゴム、フッ素ゴム、プロロピレンゴム、ブタジエンゴム等の、可撓性及び形状復元性を有することが知られている、いわゆるゴム材が挙げられる。 As the resin base material constituting the blade base material, various elastic base materials generally used as non-metal cleaning blades can be adopted. For example, polyurethane rubber, silicone rubber, fluororubber, and proropylene rubber can be used. , Butoe rubber, a so-called rubber material known to have flexibility and shape restoration properties, and the like.

ゴム材の物性としては、ＪＩＳ−Ａの硬度７０〜８５程度であることが好ましい。 As for the physical characteristics of the rubber material, it is preferable that the hardness of JIS-A is about 70 to 85.

被覆層は、板状である樹脂基材の少なくとも一辺を覆うように形成されており、主としてダイヤモンドライクカーボン（ＤＬＣ）膜から成るが、基材との界面側には、樹脂基材と被覆層との密着性をより強固にするための繋ぎ層を有している。 The coating layer is formed so as to cover at least one side of a plate-shaped resin base material, and is mainly composed of a diamond-like carbon (DLC) film. On the interface side with the base material, the resin base material and the coating layer are formed. It has a connecting layer to further strengthen the adhesion with.

繋ぎ層は、被覆層の主成分であるＤＬＣに加えて、アンカー材として窒化チタン、炭化チタン、炭窒化チタン、シリコンチタン、窒化クロム、炭化タングステン、炭化ケイ素、タングステンチタンの少なくともいずれかを含んでいる。 The connecting layer contains at least one of titanium nitride, titanium carbide, titanium carbonitride, silicon titanium, chromium nitride, tungsten carbide, silicon carbide, and titanium tungsten carbide as an anchor material in addition to DLC which is the main component of the coating layer. There is.

繋ぎ層を覆うことになるＤＬＣから成る表面層は、その厚みを０．０５μｍ以上０．３μｍ以下とすること好ましい。膜厚が厚くなる程、被覆膜が弾性変形する基材の動きに追従しきれず、膜剥がれが生じやすくなってしまう。また、膜厚が薄すぎると、ブレード材の表面の摩擦係数を低減させるという、ＤＬＣ膜を設けることの目的である効果が十分に得られない。 The thickness of the surface layer made of DLC that covers the connecting layer is preferably 0.05 μm or more and 0.3 μm or less. The thicker the film thickness, the more the coating film cannot follow the movement of the base material that is elastically deformed, and the film peeling tends to occur. Further, if the film thickness is too thin, the effect of reducing the friction coefficient on the surface of the blade material, which is the purpose of providing the DLC film, cannot be sufficiently obtained.

被覆膜の形成方法としてはＤＬＣを基材表面に成膜する方法として一般的な手法である、各種蒸着法（ＰＶＤ：物理気相成長法、ＣＶＤ：化学気相成長法）を用いることができる。 As a method for forming the coating film, various vapor deposition methods (PVD: physical vapor deposition method, CVD: chemical vapor deposition method), which are general methods for forming a DLC on the surface of a substrate, can be used. it can.

例えば、マイクロ波プラズマＣＶＤ法、直流プラズマＣＶＤ法、高周波プラズマＣＶＤ法、有磁場プラズマＣＶＤ法、イオンビーム・スパッタ法、イオンビーム蒸着法、反応性プラズマ・スパッタ法、アンバランスドマグネトロンスパッタ法等により形成される。 For example, by microwave plasma CVD method, DC plasma CVD method, high frequency plasma CVD method, magnetic field plasma CVD method, ion beam sputtering method, ion beam deposition method, reactive plasma sputtering method, unbalanced magnetron sputtering method, etc. It is formed.

このとき用いることができる原料ガスは、含炭素ガスであり、例えば、メタン、エタン、プロパン、エチレン、ベンゼン、アセチレン等の炭化水素ガス、塩化メチレン、四塩化炭素、クロロホルム、トリクロルエタン等のハロゲン化炭素、メチルアルコール、エチルアルコール等のアルコール類、アセトン、ジフェニルケトン等のケトン類、一酸化炭素、二酸化炭素等のガス、及び、これらのガスにＮ2、Ｈ2、Ｏ2、Ｈ2Ｏ、Ａｒ等を混合したものが挙げられる。 The raw material gas that can be used at this time is a carbon-containing gas, for example, a hydrocarbon gas such as methane, ethane, propane, ethylene, benzene and acetylene, and halogenation of methylene chloride, carbon tetrachloride, chloroform, trichloroethane and the like. Alcohols such as carbon, methyl alcohol and ethyl alcohol, ketones such as acetone and diphenyl ketone, gases such as carbon monoxide and carbon dioxide, and these gases are N 2 , H 2 , O 2 , H 2 O, An example is a mixture of Ar and the like.

なお、各種蒸着法の中でも、アークプラズマ源を用いたイオンビーム蒸着法である、フィルター型カソーディック真空アーク（ＦＣＶＡ：Filtered Cathodic Vacuum Arc）方式を用いて、形成することが好ましい。 Among various vapor deposition methods, it is preferably formed by using a filtered Cathodic Vacuum Arc (FCVA) method, which is an ion beam vapor deposition method using an arc plasma source.

ＰＶＤ法の一種であるＦＣＶＡでは、固体の炭素源から直接的に炭素を取り出すため、炭素源として炭化水素ガスを用いるプラズマＣＶＤ法等と比較し、水素含有量の少ないＤＬＣ膜が得られる。そのため、ＦＣＶＡ法によって形成されたＤＬＣ膜は、より耐摩耗性に優れ、かつ、摩擦係数が低い物性が得られる。 In FCVA, which is a kind of PVD method, carbon is directly extracted from a solid carbon source, so that a DLC film having a lower hydrogen content can be obtained as compared with a plasma CVD method or the like in which a hydrocarbon gas is used as a carbon source. Therefore, the DLC film formed by the FCVA method has more excellent wear resistance and a low coefficient of friction.

繋ぎ層は、炭素とアンカー材が一定の比率で分散した状態とするよりも、被覆層の成長方向（基材との界面側ら表面層に向かう方向）に進むにつれて、アンカー材の割合が徐々に下がっていくように形成されていることが好ましい。なお、アンカー材の比率がゼロになって以降のアンカー材を含まない部分が、被覆層の表面層に相当し、ダイヤモンドライクカーボンから成る表面層のビッカース硬度は１５００Ｈｖ以上となる。 In the connecting layer, the ratio of the anchor material gradually increases as the coating layer grows (from the interface side with the base material toward the surface layer) rather than in a state where carbon and the anchor material are dispersed at a constant ratio. It is preferable that it is formed so as to descend to. The portion that does not contain the anchor material after the ratio of the anchor material becomes zero corresponds to the surface layer of the coating layer, and the Vickers hardness of the surface layer made of diamond-like carbon is 1500 Hv or more.

従って、特に繋ぎ層については、ＦＣＶＡ方式を用いて形成することが好ましい。ＦＣＶＡ方式を用いることで、炭素源のガスと、各イオン源（チタン源・クロム源・タングステン源・ケイ素源）となるガスの混合比率の調整を精密に行いながら成膜することができる。 Therefore, it is preferable to form the connecting layer by using the FCVA method. By using the FCVA method, it is possible to form a film while precisely adjusting the mixing ratio of the gas of the carbon source and the gas of each ion source (titanium source, chromium source, tungsten source, silicon source).

イオン源ガスを注入することにより、基材成分（窒素やケイ素）、あるいは、炭素と各イオンが結合することで、繋ぎ層の構成成分として上述した、窒化チタン、炭化チタン、炭窒化チタン、シリコンチタン、窒化クロム、炭化ケイ素、タングステンチタン、炭化タングステン、等が形成される。 By injecting an ion source gas, the base material components (nitrogen and silicon) or carbon and each ion are combined to form the above-mentioned titanium nitride, titanium carbide, titanium carbide, and silicon as constituent components of the connecting layer. Titanium, chromium nitride, silicon carbide, tungsten titanium, tungsten carbide, etc. are formed.

ブレード基材の樹脂とＤＬＣ膜とでは、材質の違いに起因するモジュラス硬度の差がある。モジュラス硬度の差が大きい程、弾性変形を繰り返すことによる被覆層の剥がれやすさつながると考えられることから、ブレード基材と被覆層（繋ぎ層）との界面には、窒化チタンやシリコンチタン、炭窒化チタン、または、タングステンチタンが形成されてブレード基材の樹脂成分（窒素やケイ素）とチタンやタングステンが混在した状態となっている混在領域が存在していることが好ましい。混在領域が存在することで、樹脂から被覆層にかけてのモジュラス硬度の段差が緩やかなものとなり、被覆層がブレード基材からより剥がれにくくなる。 There is a difference in modulus hardness between the resin of the blade base material and the DLC film due to the difference in the material. It is considered that the larger the difference in modulus hardness, the easier it is for the coating layer to peel off due to repeated elastic deformation. Therefore, titanium nitride, silicon titanium, and charcoal are used at the interface between the blade base material and the coating layer (connecting layer). It is preferable that there is a mixed region in which titanium nitride or titanium nitride is formed and the resin component (nitrogen or silicon) of the blade base material and titanium or tungsten are mixed. Due to the presence of the mixed region, the step of the modulus hardness from the resin to the coating layer becomes gentle, and the coating layer is less likely to be peeled off from the blade base material.

［クリーニングブレード］
初めに、以下の様にしてブレード基材を作成した。ポリカプロラクトンポリオール（ダイセル化学工業(株)製、プラクセル２０５、平均分子量５２９、水酸基価２１２ＫＯＨｍｇ／ｇ）およびポリカプロラクトンポリオール（ダイセル化学工業(株)製、プラクセル２４０、平均分子量４１５５、水酸基価２７ＫＯＨｍｇ／ｇ）と、をポリオール成分のソフトセグメント材料として用いた。また、２つ以上のヒドロキシル基を含むアクリル樹脂（綜研化学社製、アクトフローＵＭＢ−２００５Ｂ）をハードセグメント材料として用い、上記ソフトセグメント材料およびハードセグメント材料を８：２（質量比）の割合で混合した。 [Cleaning blade]
First, a blade base material was prepared as follows. Polycaprolactone polyol (manufactured by Daicel Chemical Industries, Ltd., Praxel 205, average molecular weight 529, hydroxyl value 212 KOHmg / g) and polycaprolactone polyol (manufactured by Daicel Chemical Industries, Ltd., Praxel 240, average molecular weight 4155, hydroxyl value 27 KOHmg / g) ) And was used as the soft segment material of the polyol component. Acrylic resin containing two or more hydroxyl groups (Actflow UMB-2005B, manufactured by Soken Chemical Co., Ltd.) is used as the hard segment material, and the soft segment material and the hard segment material are used in a ratio of 8: 2 (mass ratio). Mixed.

次に、このソフトセグメント材料とハードセグメント材料との混合物１００部に対して、イソシアネート化合物として４，４'−ジフェニルメタンジイソシアネート（日本ポリウレタン工業(株)製、ミリオネートＭＴ）を６．２６部加えて、窒素雰囲気下で７０℃で３時間反応させた。尚、この反応で使用したイソシアネート化合物量は、反応系に含まれる水酸基に対するイソシアネート基の比（イソシアネート基／水酸基）が０．５となるよう選択したものである。 Next, 6.26 parts of 4,4'-diphenylmethane diisocyanate (Millionate MT manufactured by Nippon Polyurethane Industry Co., Ltd.) was added as an isocyanate compound to 100 parts of the mixture of the soft segment material and the hard segment material. The reaction was carried out at 70 ° C. for 3 hours in a nitrogen atmosphere. The amount of the isocyanate compound used in this reaction was selected so that the ratio of the isocyanate group to the hydroxyl group contained in the reaction system (isocyanate group / hydroxyl group) was 0.5.

続いて、上記イソシアネート化合物を更に３４．３部加え、窒素雰囲気下で７０℃で３時間反応させて、プレポリマーを得た。尚、プレポリマーの使用に際して利用したイソシアネート化合物の全量は４０．５６部であった。 Subsequently, 34.3 parts of the above isocyanate compound was further added and reacted at 70 ° C. for 3 hours in a nitrogen atmosphere to obtain a prepolymer. The total amount of the isocyanate compound used when using the prepolymer was 40.56 parts.

次に、このプレポリマーを１００℃に昇温し、減圧下で１時間脱泡した。その後、プレポリマー１００部に対して、１，４−ブタンジオールとトリメチロールプロパンとの混合物（質量比＝６０／４０）を７．１４部加え、３分間泡を巻きこまないよう混合し、基材形成用組成物を調製した。 Next, the temperature of this prepolymer was raised to 100 ° C., and defoaming was performed under reduced pressure for 1 hour. Then, 7.14 parts of a mixture of 1,4-butanediol and trimethylolpropane (mass ratio = 60/40) was added to 100 parts of the prepolymer, and the mixture was mixed for 3 minutes without entraining bubbles to form a base material. A composition for formation was prepared.

次いで、１４０℃に金型を調整した遠心成形機に上記基材形成用組成物を流し込み、１時間硬化反応させた。次いで、１１０℃で２４時間熟成加熱し、冷却した後切断して、長さ３２０ｍｍ、幅１２ｍｍ、厚さ２ｍｍの基材Ａを得た。 Next, the composition for forming a base material was poured into a centrifugal molding machine whose mold was adjusted to 140 ° C., and a curing reaction was carried out for 1 hour. Then, it was aged and heated at 110 ° C. for 24 hours, cooled, and then cut to obtain a base material A having a length of 320 mm, a width of 12 mm, and a thickness of 2 mm.

続いて、得られた基材Ａに対して、ＦＣＶＡ方式により被覆層を形成した。被覆層としてのＤＬＣ膜は、元素源として炭素のみを用いた場合は炭素のみから成る純粋なＤＬＣ膜となるが、本実施例においては、成膜処理の初期に、アンカー材としてのチタン源となるガスを炭素の気化ガスに混合することで、基材と繋ぎ層との界面に混在領域が存在する繋ぎ層を形成することで、本実施例に係るクリーニングブレードを作製した。 Subsequently, a coating layer was formed on the obtained base material A by the FCVA method. The DLC film as a coating layer is a pure DLC film composed of only carbon when only carbon is used as an element source, but in this embodiment, a titanium source as an anchor material is used at the initial stage of the film formation process. By mixing this gas with carbon vaporized gas to form a connecting layer in which a mixed region exists at the interface between the base material and the connecting layer, the cleaning blade according to this embodiment was produced.

繋ぎ層の組成について、Ｘ線光電子分光分析器で確認したところ、表面層の厚みは２００ｎｍ、繋ぎ層の厚みは１３３ｎｍであった。また、繋ぎ層に含有されるチタンの原子数濃度のピークは７％であること、及び、基材と被覆層との界面領域において、基材成分とチタン・炭素とが混在していることが確認された。 When the composition of the connecting layer was confirmed by an X-ray photoelectron spectroscopy analyzer, the thickness of the surface layer was 200 nm and the thickness of the connecting layer was 133 nm. In addition, the peak concentration of titanium atoms contained in the connecting layer is 7%, and the base material component and titanium / carbon are mixed in the interface region between the base material and the coating layer. confirmed.

以上の様にして得られたクリーニングブレードを、光源入射角６０°における鏡面光沢度Ｇｓ（６０°）が１３５である無端状ベルトと共に、市販の画像形成装置（富士ゼロックス製 ＡｐｅｏｓＩＶ−５５７５）に設置することで、実施例１に係る画像形成装置を準備した。 The cleaning blade obtained as described above is installed in a commercially available image forming apparatus (Apeos IV-5575 manufactured by Fuji Xerox) together with an endless belt having a mirror glossiness Gs (60 °) of 135 at a light source incident angle of 60 °. By doing so, the image forming apparatus according to the first embodiment was prepared.

無端状ベルトを、Ｇｓ（６０°）が１２９であるものとした点以外は、実施例１と同様にして実施例２に係る画像形成装置を準備した。 An image forming apparatus according to Example 2 was prepared in the same manner as in Example 1 except that the endless belt had a Gs (60 °) of 129.

無端状ベルトを、Ｇｓ（６０°）が１２３であるものとした点以外は、実施例１と同様にして実施例３に係る画像形成装置を準備した。 The image forming apparatus according to the third embodiment was prepared in the same manner as in the first embodiment except that the endless belt had a Gs (60 °) of 123.

無端状ベルトを、Ｇｓ（６０°）が１１８であるものとした点以外は、実施例１と同様にして実施例２に係る画像形成装置を準備した。 The image forming apparatus according to the second embodiment was prepared in the same manner as in the first embodiment except that the endless belt had a Gs (60 °) of 118.

無端状ベルトを、Ｇｓ（６０°）が１１０であるものとした点以外は、実施例１と同様にして実施例２に係る画像形成装置を準備した。 The image forming apparatus according to the second embodiment was prepared in the same manner as in the first embodiment except that the endless belt had a Gs (60 °) of 110.

比較例１Comparative Example 1

被覆層を形成していない基材Ａそのものをクリーニングブレードとして画像形成装置に設置した点以外は、実施例１と同様にして比較例１に係る画像形成装置を準備した。 The image forming apparatus according to Comparative Example 1 was prepared in the same manner as in Example 1 except that the base material A itself on which the coating layer was not formed was installed in the image forming apparatus as a cleaning blade.

比較例２Comparative Example 2

被覆層を形成していない基材Ａそのものをクリーニングブレードとして画像形成装置に設置した点以外は、実施例２と同様にして比較例２に係る画像形成装置を準備した。 The image forming apparatus according to Comparative Example 2 was prepared in the same manner as in Example 2 except that the base material A itself on which the coating layer was not formed was installed in the image forming apparatus as a cleaning blade.

比較例３Comparative Example 3

被覆層を形成していない基材Ａそのものをクリーニングブレードとして画像形成装置に設置した点以外は、実施例３と同様にして比較例３に係る画像形成装置を準備した。 The image forming apparatus according to Comparative Example 3 was prepared in the same manner as in Example 3 except that the base material A itself on which the coating layer was not formed was installed in the image forming apparatus as a cleaning blade.

比較例４Comparative Example 4

被覆層を形成していない基材Ａそのものをクリーニングブレードとして画像形成装置に設置した点以外は、実施例４と同様にして比較例４に係る画像形成装置を準備した。 The image forming apparatus according to Comparative Example 4 was prepared in the same manner as in Example 4 except that the base material A itself on which the coating layer was not formed was installed in the image forming apparatus as a cleaning blade.

比較例５Comparative Example 5

被覆層を形成していない基材Ａそのものをクリーニングブレードとして画像形成装置に設置した点以外は、実施例５と同様にして比較例５に係る画像形成装置を準備した。 The image forming apparatus according to Comparative Example 5 was prepared in the same manner as in Example 5 except that the base material A itself on which the coating layer was not formed was installed in the image forming apparatus as a cleaning blade.

比較例６Comparative Example 6

無端状ベルトを、Ｇｓ（６０°）が１０３であるものとした点以外は、実施例１と同様にして比較例６に係る画像形成装置を準備した。 An image forming apparatus according to Comparative Example 6 was prepared in the same manner as in Example 1 except that the endless belt had a Gs (60 °) of 103.

比較例７Comparative Example 7

被覆層を形成していない基材Ａそのものをクリーニングブレードとして画像形成装置に設置した点以外は、比較例６と同様にして比較例７に係る画像形成装置を準備した。 The image forming apparatus according to Comparative Example 7 was prepared in the same manner as in Comparative Example 6 except that the base material A itself on which the coating layer was not formed was installed in the image forming apparatus as a cleaning blade.

比較例８Comparative Example 8

無端状ベルトを、Ｇｓ（６０°）が１４１であるものとした点以外は、実施例１と同様にして比較例８に係る画像形成装置を準備した。 An image forming apparatus according to Comparative Example 8 was prepared in the same manner as in Example 1 except that the endless belt had a Gs (60 °) of 141.

比較例９Comparative Example 9

被覆層を形成していない基材Ａそのものをクリーニングブレードとして画像形成装置に設置した点以外は、比較例８と同様にして比較例９に係る画像形成装置を準備した。 The image forming apparatus according to Comparative Example 9 was prepared in the same manner as in Comparative Example 8 except that the base material A itself on which the coating layer was not formed was installed in the image forming apparatus as a cleaning blade.

［清掃性能確認試験］
各実施例及び比較例に係る画像形成装置を用いて、Ａ４用紙３００００回の印刷を実施した後、筋状の印刷汚れの発生の有無を確認することで、各実施例及び比較例における清掃品質を判定した。筋状の汚れは、ベルト表面に付着したトナー溜りがクリーニングブレードによって除去しきれない場合に発生する印刷不良である。結果を表１に示す。 [Cleaning performance confirmation test]
After printing 30,000 times on A4 paper using the image forming apparatus according to each Example and Comparative Example, the cleaning quality in each Example and Comparative Example is confirmed by confirming the presence or absence of streaky printing stains. Was judged. Streaky stains are printing defects that occur when the toner pool adhering to the belt surface cannot be completely removed by the cleaning blade. The results are shown in Table 1.

Figure 0006880652
Figure 0006880652

なお、表１には記載していないが、比較例５及び７においては、印刷不良の他クリーニングブレードのメクレが生じた。クリーニングブレードのメクレとは、クリーニングブレードが、ベルトとの摩擦によってベルトの進行方向に巻き込まれて撓んでしまうことを意味する。 Although not shown in Table 1, in Comparative Examples 5 and 7, printing defects and cleaning blades were messed up. Mekure of the cleaning blade means that the cleaning blade is caught in the traveling direction of the belt due to friction with the belt and bends.

比較例１〜５では、いずれも印刷不良が生じたのに対して、実施例１〜５では印刷不良は発生しなかった。 In Comparative Examples 1 to 5, printing defects occurred in all of them, whereas in Examples 1 to 5, no printing defects occurred.

また、鏡面光沢度Ｇｓ（６０°）が１０３である同一の無端状ベルトを具えた比較例６及び７では、被覆層の有無が異なるクリーニングブレードを用いているが、共に印刷不良が生じた。 Further, in Comparative Examples 6 and 7 provided with the same endless belt having a mirror glossiness Gs (60 °) of 103, cleaning blades having different coating layers were used, but printing defects occurred in both cases.

また、鏡面光沢度Ｇｓ（６０°）が１４１である同一の無端状ベルトを具えた比較例６及び７では、被覆層の有無が異なるクリーニングブレードを用いているが、共に印刷不良は生じなかった。 Further, in Comparative Examples 6 and 7 provided with the same endless belt having a mirror glossiness Gs (60 °) of 141, cleaning blades having different coating layers were used, but printing defects did not occur in both cases. ..

このことから、ダイヤモンドライクカーボンによって被覆されたクリーニングブレードは、鏡面光沢度Ｇｓ（６０°）が、１１０以上１４１以下の無端状ベルトに対して良好な性能を発揮することがわかる。 From this, it can be seen that the cleaning blade coated with diamond-like carbon exhibits good performance for an endless belt having a mirror glossiness Gs (60 °) of 110 or more and 141 or less.

また、比較例９が示すように、鏡面光沢度Ｇｓ（６０°）が１４１の無端状ベルトでは、ダイヤモンドライクカーボンによって被覆されていないクリーニングブレードでも印刷不良は発生しないため、各実施例に係るダイヤモンドライクカーボンによって被覆されたクリーニングブレードは、鏡面光沢度Ｇｓ（６０°）が、１１０以上１３５以下の無端状ベルトと組み合わせることで、ダイヤモンドライクカーボンによって被覆されていないクリーニングブレードに対して顕著な効果を奏することがわかる。 Further, as shown in Comparative Example 9, in the endless belt having a mirror glossiness Gs (60 °) of 141, printing defects do not occur even with a cleaning blade not coated with diamond-like carbon. Therefore, diamonds according to each embodiment. Cleaning blades coated with like carbon have a significant effect on cleaning blades not coated with diamond-like carbon when combined with an endless belt with a mirror gloss Gs (60 °) of 110 or more and 135 or less. You can see that it plays.

なお、鏡面光沢度Ｇｓ（６０°）１１０以上１３５以下の範囲の無端状ベルトは、図１に示す検量線によって、表面粗さＲｚ０．０５μｍ以上０．１５μｍ以下の範囲に相当する無端状ベルトであることから、各実施例に係るダイヤモンドライクカーボンによって被覆されたクリーニングブレードは、表面粗さＲｚ０．０５μｍ以上０．１５μｍ以下の無端状ベルトと組み合わせることで、顕著な効果を奏することがわかる。 The endless belt having a mirror gloss Gs (60 °) of 110 or more and 135 or less is an endless belt corresponding to a surface roughness Rz of 0.05 μm or more and 0.15 μm or less according to the calibration curve shown in FIG. From this, it can be seen that the cleaning blade coated with diamond-like carbon according to each embodiment exerts a remarkable effect when combined with an endless belt having a surface roughness Rz of 0.05 μm or more and 0.15 μm or less.

以上で説明をしたように、本発明は転写装置及び画像形成装置に適用することができる。 As described above, the present invention can be applied to a transfer device and an image forming device.

Claims (6)

表面粗さＲｚが０．０５μｍ以上０．１５μｍ以下である無端状のベルトと
前記ベルトを清掃するクリーニングブレードであって、板状の樹脂基材と、前記樹脂基材の少なくとも一つの辺部を覆う被覆層とを有し、前記被覆層には、前記樹脂基材との界面側に形成され、ダイヤモンドライクカーボンと、窒化チタン、シリコンチタン、タングステンチタン、炭化チタン及び炭窒化チタンから成る群から選ばれる少なくとも一つとが混在する繋ぎ層と、前記繋ぎ層を覆いダイヤモンドライクカーボンからなる表面層とが形成されている、前記クリーニングブレードと、
を具えた転写装置。 An endless belt having a surface roughness Rz of 0.05 μm or more and 0.15 μm or less and a cleaning blade for cleaning the belt, the plate-shaped resin base material and at least one side portion of the resin base material. It has a coating layer to cover, and the coating layer is formed on the interface side with the resin base material and consists of a group consisting of diamond-like carbon, titanium nitride, silicon titanium, tungsten titanium, titanium carbide and titanium carbonitride. The cleaning blade, wherein a connecting layer in which at least one selected is mixed and a surface layer made of diamond-like carbon covering the connecting layer are formed.
Transfer device equipped with. 前記樹脂基材が、ウレタン系ゴム、ポリイミド系ゴム、シリコーンゴム、フッ素ゴム、プロロピレンゴム、ブタジエンゴムから成る群から選ばれるいずれかである請求項１記載の転写装置。 The transfer device according to claim 1, wherein the resin base material is selected from the group consisting of urethane-based rubber, polyimide-based rubber, silicone rubber, fluororubber, prolopylene rubber, and butadiene rubber. 前記樹脂基材と前記被覆層との界面においては、前記樹脂基材及び前記被覆層の構成材料が混在した領域が形成されている、請求項１又は２記載の転写装置。 The transfer device according to claim 1 or 2, wherein a region in which the resin base material and the constituent materials of the coating layer are mixed is formed at the interface between the resin base material and the coating layer. 前記表面層の厚みが０．０５μｍ以上０．３μｍ以下である、請求項１から３記載の転写装置。 The transfer device according to claims 1 to 3, wherein the surface layer has a thickness of 0.05 μm or more and 0.3 μm or less. 前記表面層のビッカース硬度が１５００Ｈｖ以上である、請求項１から４記載の転写装置。 The transfer device according to claims 1 to 4, wherein the Vickers hardness of the surface layer is 1500 Hv or more. 請求項１から５いずれか記載の転写装置を具えた、画像形成装置。

An image forming apparatus comprising the transfer apparatus according to any one of claims 1 to 5.
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